Spring-wheel.



FATENTED FEB. 5, 1907.

M. MURRAY.

SPRING WHEEL.

\APPLIOATION FILED SEPT. 21 1906.

- spring-wheel constructions in whi MIcrn EL MURRAY, OF HARRISBURG, PENNSYLVANIA.

SPRING-WHEEL.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed September 21, 1906. Serial No. 835,664..

Be it known that I, MICHAEL MURRAY, a citizen of the United States, residing at Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Spring-Wheels, of which the followin is a specification.

This invention relates to that ty e of cli thev wheel comprises a rim to which are applied a plurality of springs designed to receive the shock andyabsorb vibration incident to the employment of the Wheel under actual conditions of service.

The essential features of the invention include the provision of practical means for applying the springs to the wheel, for securing a suitable tire to the springs, and for protecting the springs and connecting parts.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for eflecting the result reference is to be had to the following description and accompanying drawings, in which Figure 1 is a side elevation, partially broken away, showing a wheel embodying the essential features of the present invention. Fig. 2 is a sectional view bringing out more clearly the manner of attaching the springs to the wheel. Fig. 3 is a detail perspective view showing more clearly the connecting means between the several springs.

Corresponding and like parts are referred to in thefollowing description and indicated in all the views of the drawings by the same reference characters.

Specifically describing'the invention, the numeral 1 desi nates the hub of the wheel, to which are app ied spokes 2. The spokes 2 are connected at the outer ends by means of a rim 3, and .the springs which give the desired elasticity or resiliency to the wheel structure are indicated at 4 and are mounted on the rim 3. The springs 4 are of somewhat U form, comprising opposite sides 4, which are bowed somewhat and which are adapted to yield outwardly. The outer portion of each spring 4 is provided with a depression which constitutes a seat 5, in which the tire 6 of the wheel is received. The formation of the seats 5 in the aforesaid springs 4 is such that the tire 6 cannot be accidentally displaced by lateral movement. The inner ex tremities of thesides 4 of the springs 4 are disposed at opposite sides of the rim 3 of the vibration and jar in wheel. Said extremities of the springs are peculiarly attached to the rim 3, and for this urpose a circular plate 7 is employed, belng lbcated in contact with the inner side of the rim 3 and being formed with openings through which the spokes 2 pass to points of connection with said rim. .The plate 7 is formed at one of its ed es with anoutwardlyextending flange 8, which is adapted to engage the outer sides of those extremities of the sides of the sprin s 4, located at one side of the rim 3. In ot er words, the annular flange 8 of the plate 7 is located at one side of.

the rim 3 and attaches certain extremitiesof the springs 4 to the rim. At the opposite side of the rim the annular plate 9 is employed to perform the saine functions with respect to opposite end portions of the springs 4 as is performed by the flange 8 above described. The plate or ring 9, together with the plate 7 and its flange 8, are secured to the rim 3 by means of sma clam s 10, opposite end portions ofwhich engage t e flange 8 and the ring 9, which are firmly in contact with the inner extremities of the sides of the sprin s 4.

The foregoing riefiy ture of the wheel and tire, and it is apparent that the mountin of the springs 4 is such that the same wil wheel passes over obstacles and will absorb a very eflectivemanner by reason of the resilience or elasticity of the said sprin s. It is contemplated to rovide flexible si es of fabric material or ru her or the like, to inclose the springs 4, said sides being indicated at 11 and being fastened at the outer and inner edges to the outer adjacent tire 6 and the rim 3, respectively. The sides will prevent the springs 4 from being clogged with foreign matter, such as dirt or, the like, and will otherwise springs from the elements, an crease the life of the wheel; Each of the springs-is preferably provided at its outer portion, which is formed with the seat 5, with an opening 12 and small metal lates are preferably attached to the springs hy having the ends thereof engaging in the openings 12, so-that all the s rings surrounding the wheel are linked together, thus holding said springs in proper relative positions conditions. This is therebyv inunder all working an advantageous feature of the invention.

It is contemplated that the form of the describes the strucyield readily when the rotect these IQO.

springs 4 may be modified somewhat; but the is claimed as new is In a spring-wheel, the combination of a rim and a tire therefor,

a plurality of springs applied thereto and comprising spaced sides 1 the inner extremities of which are arranged 1 at o posite. sides of the rim,-

lo at t e inner outwardly projecting a plate arranged side ofrthe rim and having an flange engaging the 8X-' for holding the trernities of the springs at one side of the latter, a detachable ring engaging the. opposite extremities of the springs, and clamp means flange and positively in engagement with the springs.

i In testimony whereof I iLfllX my signature in presence of two witnesses.

1 MICHAEL MURRAY. [L: s}

Witnesses:

ELsIE R-WoLF, A. B. GINGRIOH.

tlze ring aforesaid 1 

